Revert the isSystemKeys patch.
Revert the isSystemKeys patch.

It broke handling of shortcuts that happen in the renderer (cmd-z, cmd-shift-v). Long-term, they should all be handled in the browser, but they aren't yet.

With this patch, cmd-left/right will again no longer work for web pages with a horizontal scrollbar.

BUG=26664,25856
TEST=Cmd-z, cmd-shift-z, cmd-shift-v should work again. cmd-left/right should no longer work on pages with a horizontal scrollbar.

Review URL: http://codereview.chromium.org/363008

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@31014 0039d316-1c4b-4281-b951-d872f2087c98

hgl888/chromium-crosswalk,dushu1203/chromium.src,junmin-zhu/chromium-rivertrail,mohamed--abdel-maksoud/chromium.src,pozdnyakov/chromium-crosswalk,M4sse/chromium.src,anirudhSK/chromium,ltilve/chromium,PeterWangIntel/chromium-crosswalk,Fireblend/chromium-crosswalk,Just-D/chromium-1,dednal/chromium.src,nacl-webkit/chrome_deps,krieger-od/nwjs_chromium.src,fujunwei/chromium-crosswalk,chuan9/chromium-crosswalk,jaruba/chromium.src,timopulkkinen/BubbleFish,ltilve/chromium,jaruba/chromium.src,bright-sparks/chromium-spacewalk,chuan9/chromium-crosswalk,ltilve/chromium,crosswalk-project/chromium-crosswalk-efl,timopulkkinen/BubbleFish,Fireblend/chromium-crosswalk,hujiajie/pa-chromium,keishi/chromium,hgl888/chromium-crosswalk-efl,mogoweb/chromium-crosswalk,rogerwang/chromium,jaruba/chromium.src,ondra-novak/chromium.src,Just-D/chromium-1,hujiajie/pa-chromium,Jonekee/chromium.src,timopulkkinen/BubbleFish,jaruba/chromium.src,chuan9/chromium-crosswalk,littlstar/chromium.src,hgl888/chromium-crosswalk-efl,timopulkkinen/BubbleFish,fujunwei/chromium-crosswalk,jaruba/chromium.src,crosswalk-project/chromium-crosswalk-efl,Jonekee/chromium.src,mohamed--abdel-maksoud/chromium.src,markYoungH/chromium.src,dushu1203/chromium.src,dednal/chromium.src,timopulkkinen/BubbleFish,zcbenz/cefode-chromium,markYoungH/chromium.src,bright-sparks/chromium-spacewalk,anirudhSK/chromium,nacl-webkit/chrome_deps,M4sse/chromium.src,hgl888/chromium-crosswalk-efl,crosswalk-project/chromium-crosswalk-efl,crosswalk-project/chromium-crosswalk-efl,rogerwang/chromium,M4sse/chromium.src,axinging/chromium-crosswalk,pozdnyakov/chromium-crosswalk,robclark/chromium,Jonekee/chromium.src,TheTypoMaster/chromium-crosswalk,robclark/chromium,krieger-od/nwjs_chromium.src,fujunwei/chromium-crosswalk,junmin-zhu/chromium-rivertrail,robclark/chromium,pozdnyakov/chromium-crosswalk,timopulkkinen/BubbleFish,dushu1203/chromium.src,patrickm/chromium.src,Jonekee/chromium.src,keishi/chromium,ondra-novak/chromium.src,hujiajie/pa-chromium,littlstar/chromium.src,littlstar/chromium.src,junmin-zhu/chromium-rivertrail,mogoweb/chromium-crosswalk,markYoungH/chromium.src,Chilledheart/chromium,Pluto-tv/chromium-crosswalk,ChromiumWebApps/chromium,markYoungH/chromium.src,bright-sparks/chromium-spacewalk,littlstar/chromium.src,hgl888/chromium-crosswalk-efl,robclark/chromium,timopulkkinen/BubbleFish,krieger-od/nwjs_chromium.src,jaruba/chromium.src,hgl888/chromium-crosswalk,Chilledheart/chromium,ltilve/chromium,dednal/chromium.src,zcbenz/cefode-chromium,Chilledheart/chromium,rogerwang/chromium,pozdnyakov/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,PeterWangIntel/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,littlstar/chromium.src,hgl888/chromium-crosswalk,ltilve/chromium,robclark/chromium,hgl888/chromium-crosswalk,mogoweb/chromium-crosswalk,Chilledheart/chromium,mohamed--abdel-maksoud/chromium.src,timopulkkinen/BubbleFish,pozdnyakov/chromium-crosswalk,bright-sparks/chromium-spacewalk,Pluto-tv/chromium-crosswalk,hujiajie/pa-chromium,fujunwei/chromium-crosswalk,rogerwang/chromium,TheTypoMaster/chromium-crosswalk,hgl888/chromium-crosswalk-efl,ChromiumWebApps/chromium,keishi/chromium,PeterWangIntel/chromium-crosswalk,junmin-zhu/chromium-rivertrail,anirudhSK/chromium,krieger-od/nwjs_chromium.src,ondra-novak/chromium.src,mogoweb/chromium-crosswalk,Just-D/chromium-1,markYoungH/chromium.src,ondra-novak/chromium.src,Just-D/chromium-1,patrickm/chromium.src,ondra-novak/chromium.src,TheTypoMaster/chromium-crosswalk,dednal/chromium.src,mohamed--abdel-maksoud/chromium.src,dushu1203/chromium.src,nacl-webkit/chrome_deps,TheTypoMaster/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,anirudhSK/chromium,Fireblend/chromium-crosswalk,Pluto-tv/chromium-crosswalk,Pluto-tv/chromium-crosswalk,axinging/chromium-crosswalk,bright-sparks/chromium-spacewalk,dushu1203/chromium.src,axinging/chromium-crosswalk,Jonekee/chromium.src,Chilledheart/chromium,nacl-webkit/chrome_deps,anirudhSK/chromium,keishi/chromium,keishi/chromium,dednal/chromium.src,PeterWangIntel/chromium-crosswalk,keishi/chromium,dushu1203/chromium.src,Fireblend/chromium-crosswalk,TheTypoMaster/chromium-crosswalk,dednal/chromium.src,ChromiumWebApps/chromium,nacl-webkit/chrome_deps,mogoweb/chromium-crosswalk,anirudhSK/chromium,pozdnyakov/chromium-crosswalk,bright-sparks/chromium-spacewalk,ChromiumWebApps/chromium,Just-D/chromium-1,jaruba/chromium.src,Jonekee/chromium.src,dushu1203/chromium.src,pozdnyakov/chromium-crosswalk,hgl888/chromium-crosswalk-efl,patrickm/chromium.src,PeterWangIntel/chromium-crosswalk,axinging/chromium-crosswalk,dushu1203/chromium.src,markYoungH/chromium.src,mohamed--abdel-maksoud/chromium.src,dushu1203/chromium.src,hgl888/chromium-crosswalk-efl,ondra-novak/chromium.src,markYoungH/chromium.src,Jonekee/chromium.src,M4sse/chromium.src,hujiajie/pa-chromium,ltilve/chromium,timopulkkinen/BubbleFish,M4sse/chromium.src,Pluto-tv/chromium-crosswalk,TheTypoMaster/chromium-crosswalk,rogerwang/chromium,robclark/chromium,krieger-od/nwjs_chromium.src,patrickm/chromium.src,rogerwang/chromium,junmin-zhu/chromium-rivertrail,crosswalk-project/chromium-crosswalk-efl,Fireblend/chromium-crosswalk,littlstar/chromium.src,mogoweb/chromium-crosswalk,krieger-od/nwjs_chromium.src,junmin-zhu/chromium-rivertrail,patrickm/chromium.src,markYoungH/chromium.src,TheTypoMaster/chromium-crosswalk,hgl888/chromium-crosswalk,anirudhSK/chromium,anirudhSK/chromium,dednal/chromium.src,crosswalk-project/chromium-crosswalk-efl,fujunwei/chromium-crosswalk,pozdnyakov/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,hujiajie/pa-chromium,pozdnyakov/chromium-crosswalk,hujiajie/pa-chromium,timopulkkinen/BubbleFish,chuan9/chromium-crosswalk,M4sse/chromium.src,pozdnyakov/chromium-crosswalk,krieger-od/nwjs_chromium.src,Jonekee/chromium.src,Just-D/chromium-1,ltilve/chromium,fujunwei/chromium-crosswalk,anirudhSK/chromium,zcbenz/cefode-chromium,Fireblend/chromium-crosswalk,ChromiumWebApps/chromium,zcbenz/cefode-chromium,Pluto-tv/chromium-crosswalk,hgl888/chromium-crosswalk,Chilledheart/chromium,anirudhSK/chromium,zcbenz/cefode-chromium,zcbenz/cefode-chromium,krieger-od/nwjs_chromium.src,Chilledheart/chromium,dednal/chromium.src,dushu1203/chromium.src,ltilve/chromium,Chilledheart/chromium,markYoungH/chromium.src,Just-D/chromium-1,nacl-webkit/chrome_deps,ChromiumWebApps/chromium,jaruba/chromium.src,jaruba/chromium.src,markYoungH/chromium.src,rogerwang/chromium,keishi/chromium,M4sse/chromium.src,zcbenz/cefode-chromium,Pluto-tv/chromium-crosswalk,nacl-webkit/chrome_deps,zcbenz/cefode-chromium,chuan9/chromium-crosswalk,M4sse/chromium.src,dednal/chromium.src,axinging/chromium-crosswalk,Jonekee/chromium.src,TheTypoMaster/chromium-crosswalk,Jonekee/chromium.src,hgl888/chromium-crosswalk-efl,nacl-webkit/chrome_deps,rogerwang/chromium,dednal/chromium.src,anirudhSK/chromium,Fireblend/chromium-crosswalk,nacl-webkit/chrome_deps,robclark/chromium,Just-D/chromium-1,axinging/chromium-crosswalk,krieger-od/nwjs_chromium.src,hujiajie/pa-chromium,pozdnyakov/chromium-crosswalk,ChromiumWebApps/chromium,hgl888/chromium-crosswalk,hujiajie/pa-chromium,robclark/chromium,jaruba/chromium.src,Chilledheart/chromium,ltilve/chromium,krieger-od/nwjs_chromium.src,chuan9/chromium-crosswalk,ondra-novak/chromium.src,Fireblend/chromium-crosswalk,bright-sparks/chromium-spacewalk,axinging/chromium-crosswalk,dednal/chromium.src,chuan9/chromium-crosswalk,patrickm/chromium.src,keishi/chromium,fujunwei/chromium-crosswalk,dushu1203/chromium.src,Pluto-tv/chromium-crosswalk,rogerwang/chromium,krieger-od/nwjs_chromium.src,Pluto-tv/chromium-crosswalk,chuan9/chromium-crosswalk,markYoungH/chromium.src,junmin-zhu/chromium-rivertrail,mogoweb/chromium-crosswalk,junmin-zhu/chromium-rivertrail,nacl-webkit/chrome_deps,mohamed--abdel-maksoud/chromium.src,robclark/chromium,Just-D/chromium-1,littlstar/chromium.src,ChromiumWebApps/chromium,fujunwei/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,ondra-novak/chromium.src,keishi/chromium,keishi/chromium,ChromiumWebApps/chromium,ondra-novak/chromium.src,Jonekee/chromium.src,ChromiumWebApps/chromium,ChromiumWebApps/chromium,axinging/chromium-crosswalk,M4sse/chromium.src,M4sse/chromium.src,crosswalk-project/chromium-crosswalk-efl,chuan9/chromium-crosswalk,hgl888/chromium-crosswalk-efl,jaruba/chromium.src,timopulkkinen/BubbleFish,littlstar/chromium.src,keishi/chromium,junmin-zhu/chromium-rivertrail,robclark/chromium,mogoweb/chromium-crosswalk,rogerwang/chromium,mohamed--abdel-maksoud/chromium.src,mogoweb/chromium-crosswalk,junmin-zhu/chromium-rivertrail,fujunwei/chromium-crosswalk,M4sse/chromium.src,zcbenz/cefode-chromium,hgl888/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,hgl888/chromium-crosswalk,axinging/chromium-crosswalk,patrickm/chromium.src,patrickm/chromium.src,patrickm/chromium.src,junmin-zhu/chromium-rivertrail,PeterWangIntel/chromium-crosswalk,nacl-webkit/chrome_deps,zcbenz/cefode-chromium,mohamed--abdel-maksoud/chromium.src,hujiajie/pa-chromium,zcbenz/cefode-chromium,hgl888/chromium-crosswalk-efl,axinging/chromium-crosswalk,anirudhSK/chromium,bright-sparks/chromium-spacewalk,bright-sparks/chromium-spacewalk,axinging/chromium-crosswalk,ChromiumWebApps/chromium,mogoweb/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,hujiajie/pa-chromium,TheTypoMaster/chromium-crosswalk,Fireblend/chromium-crosswalk